Outcome of
DNA replication
is best describes by new DNA molecule consists of one new strand and one old strand of DNA.
What term best describes DNA?
Deoxyribonucleic acid (DNA) is a molecule that contains the
biological instructions
that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction.
What process results in DNA?
Replication
is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. DNA replication is one of the most basic processes that occurs within a cell.
What is the end of DNA?
Each end of DNA molecule has a number. One end is referred to as
5′ (five prime)
and the other end is referred to as 3′ (three prime). The 5′ and 3′ designations refer to the number of carbon atom in a deoxyribose sugar molecule to which a phosphate group bonds.
What are the 3 types of DNA?
Three major forms of DNA are double stranded and connected by interactions between complementary base pairs. These are terms
A-form, B-form,and Z-form DNA
.
What sugar is found in DNA?
The sugar in deoxyribonucleic acid (DNA) is
deoxyribose
.
Which protein is most important for DNA checkpoint?
Two groups of proteins, called
cyclins and cyclin-dependent kinases (Cdks)
, are responsible for the progress of the cell through the various checkpoints.
What are the 5 steps in DNA replication?
- Step 1: Replication Fork Formation. Before DNA can be replicated, the double stranded molecule must be “unzipped” into two single strands.
- Step 2: Primer Binding. The leading strand is the simplest to replicate.
- Step 3: Elongation.
- Step 4: Termination.
What are the 7 steps of DNA replication?
- Initiation.
- Primer Synthesis.
- Leading Strand Synthesis.
- Lagging Strand Synthesis.
- Primer Removal.
- Ligation.
- Termination.
Where does DNA transcription occur?
Transcription takes place
in the nucleus
. It uses DNA as a template to make an RNA molecule. RNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. Translation reads the genetic code in mRNA and makes a protein.
Do you read DNA from 5 to 3?
5′ – 3′ direction refers to the orientation of nucleotides of a single strand of DNA or RNA. …
DNA is always read in the 5′ to 3′ direction
, and hence you would start reading from the free phosphate and finish at the free hydroxyl group.
What is difference between DNA and RNA?
There are two differences that distinguish DNA from RNA: (a)
RNA contains the sugar ribose
, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
What type of DNA is found in humans?
What type of DNA is found in humans?
B-DNA
is found in humans. It is a right-handed double-helical structure.
What DNA is present in humans?
Cells have two types of DNA –
mitochondrial DNA and autosomal DNA
. Nuclear DNA (autosomal DNA) is enveloped into 22 pairs of chromosomes. In every pair of autosomes, one has inherited, one set is derived from the father and the other from the mother.
What type of DNA is human?
Nearly every cell in a person’s body
has the same DNA
. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
Is DNA a sugar?
Both DNA and RNA are built with a sugar backbone, but whereas the sugar in DNA is called
deoxyribose
(left in image), the sugar in RNA is called simply ribose (right in image).
